Modular synths have recently piqued my interest, but patch cords are hell. I have been thinking of some intelligent way to route signals - something microcontroller-driven and remembering different presets. I came across analog crosspoint switches - they are used to switch high-frequency signal, television and the like, and have 16 inputs and 16 outputs. They, however have unnecessarily high bandwidths (60+MHz) and prices ($30+/chip) for this.
I'm looking for a 16x16 switch (or a good way to implement one), suitable for modular synth use, and not having dedicated inputs and outputs - just 16 points which can be freely connected to one another.